lkml.org 
[lkml]   [2012]   [Mar]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    SubjectRe: [PATCH v2 0/3] ahci: fix boot/resume COMRESET failures
    From
    On Sun, Mar 4, 2012 at 6:58 PM, Lin Ming <ming.m.lin@intel.com> wrote:
    > On Fri, Mar 2, 2012 at 9:16 PM, cwillu <cwillu@cwillu.com> wrote:
    >> On Tue, Feb 21, 2012 at 12:38 PM, Brian Norris
    >> <computersforpeace@gmail.com> wrote:
    >>> This series addresses regression problems with
    >>>
    >>>    commit 7faa33da9b7add01db9f1ad92c6a5d9145e940a7
    >>>    ahci: start engine only during soft/hard resets
    >>
    >> I just spent the better part of last night tracking down the specific
    >> sources of the log entry I get when I disconnect my e-sata drive; once
    >> it disconnects, the port is dead until I reboot; no combination of
    >> anything I've been able to poke at in /sys or elsewhere gets it live
    >> again.  This starts with 3.3rc1, and turns out to still work fine in
    >> 3.2.1. Any chance it's related?
    >>
    >> 3.3rc5, immediately after the unplug:
    >
    > Hi,
    >
    > I tested on my machine and it's fixed by below patch.
    > http://marc.info/?l=linux-kernel&m=132996405028746&w=2
    >
    > Would you please also try it?

    Building it now, and will be able to test in about 5 hours.

    After looking at the thread, I spent another couple hours on poking
    /sys, and did get the port to come back up and find the drive with the
    following:

    echo on > /sys/devices/pci0000:00/0000:00:1f.2/ata5/power/control
    echo on > /sys/devices/pci0000:00/0000:00:1f.2/ata5/host4/power/control
    echo '- - -' > /sys/devices/pci0000:00/0000:00:1f.2/ata5/host4/scsi_host/host4/scan
    --
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2012-03-05 06:15    [W:0.023 / U:95.208 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site